/Engine/Source/Runtime/Engine/Public/Animation/AnimCurveTypes.h
struct FTransformCurve : public [FAnimCurveBase](API\Runtime\Engine\Animation\FAnimCurveBase)
FVectorCurve
RotationCurve
Rotation curve - right now we use euler because quat also doesn't provide linear interpolation - curve editor can't handle quat interpolation If you hit gimbal lock, you should add extra key to fix it.
FVectorCurve
ScaleCurve
FVectorCurve
TranslationCurve
Curve data for each transform.